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    • © 2025 OpenRouter, Inc

    OpenAI: GPT-3.5 Turbo Instruct

    openai/gpt-3.5-turbo-instruct

    Created Sep 28, 20234,095 context
    $1.50/M input tokens$2/M output tokens

    This model is a variant of GPT-3.5 Turbo tuned for instructional prompts and omitting chat-related optimizations. Training data: up to Sep 2021.

    Recent activity on GPT-3.5 Turbo Instruct

    Total usage per day on OpenRouter

    Completion
    289K
    Prompt
    155K

    Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.